Pump



VMay 24, 1932. A, L FAWCETT 1,860,279

l PUMP Filed May 20, 1931 2 Sheets-Sheet l 45 Figure 3 isa cross sectionon the line 3- when resting thereon. o .t

50 ofv Figure 1.

Patented May 24,1932 j' 1,860,279 j* UNETEEL ST PATENT QFFICE,AnTnURf'L. FAW'CETTQ'AFUMVILLEKTEXS t, f. i Purim p j j v `Appnea'ion'meanay'ao, resi." senat No; 538,556. y

j My invention relates to certain new and Figure Gisa perspectiveviewfof the-valve useful improvements in pumps for water and cagen andits back check v alve`, l .l Y j oil wells and it particularly has `forVits 010-. Inthe drawings,1nwh1ch'l1ke numeralsot ject to provide a pumpin which the weight reference indicate like parts 1n all lof the 1 l ofthe plungervrod and its piston are taken igures, the outer barrel of thepump. 1s shown 5,; advantageof to raise the water or oil from ascomposedof sections l-l'and 41 coupled the well., i L

Heretotore,` pumps have been provided latter` being a reducing coupling.V i whereby on the upstroke of the plunger rod t 'A bushing 3 is securedwithintherlfower and its piston the water is lifted while on `end of theouter barrel by suit-able means4gp the down stroke the water chamber ofthe The bushing 3 is counterbored asat- 5 a-nd pump is recharged.` Myinvention has Jforan has the entrance to the -counterbore bevelledobject to reversethis order 'and to charge as: at 6 so that in fittingthe innerbarrel 9 the pump chamber on .the upstroke of the it willconveniently slide into-place` in thev plunger and to force the watertothe surcounterbore. 5.

face on the downward stroke of the plunger The counterbore 5 provides ashoulder 7y f to expel the water from the well. or seatfor the packingring 8 that islocated Further, it is an object to provide a simbetweenthe shouldered end 100i the inner ple, inexpensive pump, the parts ofwhich barrel 9 and the seat 7. `The weight of theY together by screwcouplings2 andfftO,.f thia,`

2'0 may be economically manufactured and easibarrel 9 'on the packing 8serves, to efect a 70 Y l ly assembled, and to providea-structure inwater-tight joint. The b'arrell9, is fittedfinto which those partssubject to wear or requiring the V*bushing 3 ywith a snug t. j 'jreplacement. from time to time :may readily Held by retaining yfrictionwithin the lower and conveniently be removed t and replaced. end of theinner barrel 9. 4is a valve cage and 2 5 Other objects will in part beobvious and valve'funitcomposed of an upper ring 12 75 -in part bepointed out hereinafter. bored and taped centrally as atl?) and a baseTo the attainment vof Vthe `aforesaid 'ob-V ring 14 connected with theupper ring 12 byjects and ends, the invention still further re'-A`vertealposts l11'. The ring .14 has-an outer sides in the novel detailsof construction, corn- .annular groove in which is located a Suitable 30 bination and arrangement offparts, allY of packing 15 that assists-infeting a wafer- 8o which will be irst fully described in the folf tightjoint between the base 14 of the valve lowing detailed description,thenbe particu- @agg and the. inner bam-e119; c Yg 1 larly pointed outin the appended claims, refe 'j The base 14 ofthe valveicage isinternally erence being had to the accompanying drawthreaded at 16l andreceives'a tubular valve ings, in wh1C11- l. l seat member 17, thelatterhaving notches Figures 1 and 1a when joined at the dot 18 for thereoeptionrof a suitable tool kby and dash lines A'-B and read togetherconmeans kof which it may bescrewed into andV stitute a longitudinalsection ofthe invention out Ofplace as desire 't y showing the plunger.gOiIlg down, the ar The Jfree valve 19 movesup and down vbe- 40 rowsindicating the direction of flow of the tween the base ring 14and the.top ring 12 water or oil as the case may be. and is guided by theuprights 11j. The valve Figures 2 and 2a when joined at the dot 19 is ofthe spool typeand has aldiskwasher and dash line C-'D and` read togetherare '20 secured by a cap screw 21 to eifect a tight similar views withthe plunger going up. seal with the tubular valve seat member -17 ofFigure 1. Y l D Figure 4 is across sectionV on the line 4-4 the valvevcage is providedV with portslf22 to Y f of Figure 1. Y. effectcommunication from the insidejo'f the Figure 5 is across section onthelinei-A- barrel 9 tol the spacefbetween the barrels,l 9 06 The innerbarrel`9 preferably justabove i v Y m11 @ha waterrbeinggfprcced.frome@e. l

barrel 9lwill pasjsthroughy these ports 22 into thev space between theinner and outer barrels and upwardly as in Figure l. Y Y Y The Vupperend of the innerbarrel'Q is-in-l ternally threaded as at 23 toreceive abushindicated by arrows ing 24:'th'at`is boredtoV serve asa bearinglforthe'plun'ger rod 25, the latterhav'inga Ypiston A26 provided withsuitable packing rings'27, thefpiston fitting theinner barrel 9.

Secured within the upper end of Vthe sec'-YV tion l of the outerbarrelvi's an upper bushing 28,V the lower partfof which lis providedwith 1b. lugs 29 that extend from( the innen-barrel `9J 29are'providedwith passages 'or `ports 30 thatregisterrwith similar Lports SEZ/in theouterbarrelfand ports 31 nthe inner barrel. The Yinner barrel is alsoprovided `with-'an tothe outer barrel section l vand theselugs outerannular groove 42 .registering 'with the ports 3l so that shouldtlieinner barrelturn ai'idithro'wthe ports 3l and 30 outof alignnieiv1t,`it`,willl not effect the functions of these aparts.'

The upper bushingQS atV its upper endis provided with a valve seat ring33 *whichV bridges the space between the inner and outer barrels This'ring 33 is provided with liquidrpasses 34j and a conical valveseat 35`Y through which .passes the water is expelled 'A toward tlietop ofthewellwhenthe valve 3G is forced yoff'the seat 35.v` The valvey s 'iiiAthe nature of a sleeve that slides up `and down on the inner barrel'9and has VguideV lugs on its outer face and a conical valve seat portion38 yto cooperate `with the .valve seat 3 5" l Y Therplungeirod'25 ispreferably made in f y e sections screweconnected togetherras at139and4A,Y the screwl end BQhe'ing of a sizey and threaded to nt the threadsV`ofthe Vopening y13 in thevalve cageso that when it is desired'to removelthe valve cage after pulling y the plunger rod out.the plunger rodfniaybe reversed and screwedinto the'valve cage 4'and the valve cage pulledout by usingthe plunger rod. c 'g Y* 'It will beseen thatv the section lofthe d loutervv barrelextends lonly' afsho'rt distancel Yabove'jthe topof the inner barrelr)r and there.- it is connected with the extensionYpipe sec-V .tioii'jlbyjthe reducingjoint 40; p The bushingi28'is heldin place inthe outer barrel `bylsuitable setscrews 43 as shown.

So faras described the foperati'on lofV the Y invention isl as follows:

When the Yplunger* rod is reciprocated vby any suitable powerV mechanism(not` shown) on the upstroke ofthe rod water will be drawn into theinner-barrel) through the bottom opening ofthe barrels l and QcausingVVtheva'lve 19 tofunseat.. VV'ater will Vnot be is Y'withdrawn from thespace between the barfrels back 'throughV` the openings 22because of"zkftlie fact thatfth'e valve 36 "remains seatedto close theout-passesfl. "Itgs'liould jbe under- VpistonQG and the bushing-24;

stood that when the pump' is immersed in the water or other liquid inthewell, the fluid `will enter the'ba-rrel 9 abovethe piston 261 throughthe openings SQ-BO-Blrand be eX- pelled through such openings on theupstroke of the plunger rod 25.' Y Y 'On the down stroke of theplunger-rod the valve 19 will Vimmediately seat and Vvclose o the escapeof fluid from the pump through the bottom openings of the inner andouter barrels, thus vforciiig'th'e fluid to pass through the openings 22`into the space'between the barrels and upwardly through the passest,

`raising the valvefroin the seat 35 and pass-Y ing upwardly to the topof the well. At the sainetinie the "fluid willfflow into the innerkbarrel l9 above the piston 26'throughtheports ation and advantages ofiny invention will 'be clear to thoseskilledl inthe art' to which itrelates. l Y g u f Y What I claim is:

by said bushings,v breather ports velfectingl.v Iny a pump,` an outer'casing, uppeiand "lower bushings secured to and in said casing,

an inner casing spaced from'said'outer casing 100 communication betweensaid inner casing and I the exterior ofV` saidk outer casing acent .saidupper'bushing, said innercasing havving ports'adj acent said flowerbushing-to ef-V fleet communication between theV inside of Vsaid inner'casing and the y'spacelbetween said A inner and outer caSingS, 'a valvecage ywith a vvalvek'located in saidxinner ycasing adjacent its lowerend, said upper bushing having VaV ring vwith a valve seat 'and liquidpasses eflow and above the' ring, la valve slidable on -saidinnerwcas'ing and gravitatingl to engagey said ring valves seat toclose'said passes, a

`bushing secured in theupperY end `of said inner casing,l, yand ingapiston within saidinnercasing. i Y '2. In a puinp` an outer`cylindfical barrel composed of pipe-sections coupled together andextending from thef-top of the well into the liquid within the well,abushing .in each end of the lowerpipe sectionptlielower bush- Y inghaving a eounterbore and seat,`r an innerY ,barrel passing through the 1upper'bushing f c. and having its lower en'd located within saidgcounterbore and on saidse'at, saidfinnerjba'r#V iel having r-a snugV fit'in Lsaid ybushing,4 `inea-ns sealing the Ypassage `of water betweensaid 1 lvrio -fecting communication betweenV the space be# A 3.- plunger.rod passing Athrough said last lnamed bushing and carryrecaer bushingand saidinner barrel, a back check valve unit carried in the lower partof said said upper bushing having liquid passes from the space betweensaid barrels below said upper bushing to the space between the saineabove the said upper bushing, and a valve slidable on said inner barrelfor closing said Y passes.

3. In a pump, an outer cylindrical barrel composed of pipe sectionscoupled togetherand extending froin the top of the well into the liquidWithin the well, afbushing in each end ofthe lower pipe'section7 thelower bushing having a counterboreand seat, an inner barrel passingthrough the upper bushing and having its lower end located within saidcounterbore and on said seat, said inner barrel having a snug t in saidbushing, means sealing the passage of water between said bushing andsaid inner barrel, a back check valve unit carried in the lower part ofsaid inner barrel and a bushing secured in the upper end of said innerbarrel, a plunger rod passing through said upper bushing and ca'rrying apiston within said inner barrel, ducts from the inside of said innerbarrel to the outside of said outer barrel and located adjacent saidupper bushing, ports through said inner barrel adjacent said valve unit,said upper bushing having liquid passes from the space between saidbarrels below said upper bushing to the space between the saine abovethe said upper bushing, and a valve slidable onV said inner barrel forclosing said passes, said upperbushing having a conical valve seat andsaid slidable valve having a conicalvalve seat port-ion cooperating withthe valve seat of said upper bushing. f 7 4. In a pump, an outercylindrical barre composed of pipe sectionscoupled together andextending from the top of tliewell into the liquid within the well, abushing in each valve unit carried in thelower part of said inner barreland a bushing secured in the upper end of said inner barrel, a plungerrod passingthrough said upper bushing and carrying a piston within saidinner barrel,V

ducts from the inside of said innerV barrel to the outside of said outerbarrel andlocated adjacentsaid upper bushingfports 4through said 'innerbarrel adjacent said valve unit,

said upper-bushing yhaving liquid passes from the space between saidbarrels below saidu'pl,

perbushing to theV spacebetween'fthe saine above the saidupperbushing,`and avalve slidable on said inner barrel for closing said passes, saidlower bushing having a bevelled end leading toits counterbore. a i' v5.In a pump, an outer cylindrical barrel composed of pipe sections coupledtogether and'extendng from the top of the well into thel liquid withinthe well, a bushing in each end ofthe lower pipe section, the lowerbush-L ing having a counterbore and'seat, anv inner f' barrel passingVthrough 4the upperbushing and having'its lower end locatedA within saidcounterbore and on said seat, said inner lbarrel having a snug iit insaid bushing, 'means sealingV the passage ot'water between-said bushingand said inner barrel, aback check valve unit carried in the lower partof said i .1'

inner barrel .and a bushing secured in the upper lend of said innerbarrel, aplunger v rod passing' through said upper bushing and ifcarrying a piston within said inner barrel,

ducts from the inside of said inner barrel to the outside of said outerbarrel-and located adjacent-said upper bushing, ports through said innerbarrel adjacent said valve unit,

said upper bushing having liquid passes yroin the space betweensaidbarrelsbelow said up- @p'er bushing to the space between the same abovethesaid upper bushing, and a valve slidable on said inner barrel forclosing said the valve kseat of said lupper bushing, said lower bushinghaving a bevelled end leadingto its counterbore.

6. In a pump, anouter cylindrical barrel composed of pipesectionsjcoupled together and extendingfroin the top of the well intothe liquid within the well, a' bushing in each j end of the lower pipese'ction,`the lowerv bushing having a counte'rbore and seat, an innerbarrel passing through the upper Vbushing and having its lower Vendlocated within said counterbore and on saidseat, said inner barrelhaving a snug tit in said bushing, means sealino the assafre of waterbetween said bushing and said inner barrel, a back check` Vvalve unitcarried in the lower part of said` inner barrel and a bushing securedinthe upf jacent said upper bushing, portsgtli'rough said inner Vbarreladjacent said .valve unit,

said upper bushing having liquid passes roin' V` 'i the space betweensaid barrels belowV 'saidlup j i per bushing tothe vspace between lthevsaine 'i above v the ysaid Vupper bushing,A vand a valve slidableonsaid inner barrel for'closing said passes,rsad back cheek Valveunitcomprising a cage having a base part ted intosaid nner barrel withretaining fretim,y and` a valve in ksaid gage, saidlast namedValvehaving a, packing disk, and a seat ring threaded 'into thebaselpart of said @argento cooperate with said disk. *n .1 VARTHUR L.ILLXVVCE'LUILY soik Q

